EP0053906A2 - Umschlagvorrichtung für Reifenaufbaumaschinen - Google Patents

Umschlagvorrichtung für Reifenaufbaumaschinen Download PDF

Info

Publication number
EP0053906A2
EP0053906A2 EP81305664A EP81305664A EP0053906A2 EP 0053906 A2 EP0053906 A2 EP 0053906A2 EP 81305664 A EP81305664 A EP 81305664A EP 81305664 A EP81305664 A EP 81305664A EP 0053906 A2 EP0053906 A2 EP 0053906A2
Authority
EP
European Patent Office
Prior art keywords
rings
assembly
fingers
set forth
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP81305664A
Other languages
English (en)
French (fr)
Other versions
EP0053906A3 (de
Inventor
Gerald J. Yuhas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NRM Corp
Original Assignee
NRM Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NRM Corp filed Critical NRM Corp
Publication of EP0053906A2 publication Critical patent/EP0053906A2/de
Publication of EP0053906A3 publication Critical patent/EP0053906A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • B29D30/16—Applying the layers; Guiding or stretching the layers during application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3221—Folding over means, e.g. bladders or rigid arms
    • B29D2030/3278—Folding down the ends of the tubular tyre component, e.g. the carcass, over the drum shoulders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/4984—Retaining clearance for motion between assembled parts
    • Y10T29/49844—Through resilient media
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/4984—Retaining clearance for motion between assembled parts
    • Y10T29/49845—Retaining clearance for motion between assembled parts by deforming interlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts

Definitions

  • This invention relates generally as indicated to a ply down assembly for a tire building machine and more particularly to a ply down and bead set assembly in which an array of axially projecting spring fingers are employed.
  • Spring finger ply downs are generally employed at each axial end of the drum of-a tire building machine.
  • Such assemblies generally comprise an array of axially extending spring fingers which project-toward the center of the drum and which in their unflexed condition extend at an angle radially outwardly.
  • Such fingers are usually flexed inwardly by the axial movement of a bead setting device causing the ends thereof to sweep or fold inwardly liner or ply material overhanging the ends of the drum. In this manner the materials of the tire are turned down over the shoulder or edge of the drum to form a shoulder of tire material rigidly backed by the edge or shoulder of the drum to receive the tire bead.
  • the ply material will normally be turned and stitched around the bead and up over the top of the drum by a dual bladder assembly such as seen, for example, in Cantarutti U.S. Patent No. 3,438,832, or the copending application of George E. Enders entitled “Tire Building Machine” Serial No. 122,605, filed February 19, 1980.
  • the problem is similar to trying to assemble a barrel without special tools or jigs, or trying to replace a single barrel stave without affecting adjacent barrel staves.
  • the fingers are clamped between two rings but to assemble the fingers or remove a single finger requires the rings to be separated sufficiently to accomplish the purpose. This is difficult to do without affecting or loosening adjacent fingers.
  • Another important object is the provision of such assembly wherein the fingers can individually quickly be removed or reinserted without affecting adjacent fingers.
  • a similar object is the provision of such assembly wherein the fingers may be inserted, or removed, without requiring the disassembly of parts.
  • Another object is the provision of a spring finger assembly for a tire building machine wherein the fingers may be assembled, removed, or replaced, without the requirement of special tools.
  • Still another object is the provision of a tire building machine incorporating a spring finger ply down wherein down time for maintenance or repair is greatly reduced.
  • a simple two ring ring assembly is provided to secure the fingers, one ring fitting within the other.
  • One ring has projections interfitting with the fingers and one or the other may be locally deformable to enable the fingers to be bent for insertion or removal without affecting adjacent fingers.
  • a yet further object is the provision of such nested ring mounting assembly wherein one of such rings is locally deformable.
  • a further object is the provision of a nested ring mounting assembly for such fingers, one of which rings has. projections interfitting with the fingers.
  • FIG. 10 there is illustrated a tire building machine shown generally at 10.
  • the machine illustrated is a first stage machine which simply constructs the tire band which may later be shaped to a toroid or tire shape on a second stage machine where other components such as a belt or tread are assembled. It will, however, be appreciated that the present invention may be utilized with other types of tire building machines such as a single stage machine wherein the band is both formed and shaped.
  • the machine includes a conventional tire building drum 12 which may be radially expanded and contracted.
  • the drum is provided with two axially oppositely extending shoulders seen at 13 and 14.
  • the drum is rotatable on shafting shown schematically at 15.
  • the dual bladder assembly includes an inner bladder 19 and an outer bladder 20. In the uninflated condition of such bladders they lie generally flat and beneath the extending shoulder 14.
  • bead setter 22 which includes a .shoulder or shelf 23 adapted to receive the bead 24.
  • the bead setter ring or assembly 22 is also movable axially of the machine.
  • the spring finger ply down assembly 26 includes an axially projecting array of spring fingers 27 which project axially toward the drum 12 inside of the bead setting ring 22.
  • the fingers are mounted at their proximal end on a ring mounting assembly shown generally at 28 which comprises nesced rings 29 and 30.
  • the mounting assembly and thus the spring finger ply down is mounted for movement axially of the drum as is the bead setting ring and the dual bladder assembly. .It will be appreciated that a dual bladder assembly, bead setting assembly and spring finger ply down will also be provided on the opposite end of the drum although not illustrated in Figures 1 and 2.
  • the spring fingers in their normal or unflexed condition extend axially and then radially outwardly as indicated at 32 in Figure 2 so that the distal ends 33 are positioned radially outwardly of the overhanging plys 34. In such unstressed state of the fingers they form a generally axially projecting cone, with the overhanging plys within the cone.
  • the rings 29 and 30 are nested with the ring 29 being metallic and including a radially extending leg 39 as well as an axially extending outer somewhat shorter leg 40.
  • the leg or flange 40 extends toward the end of the drum in ring form.
  • the ring 29 may be connected to a support movable axially of the tire building machine.
  • ring 30 Nested within the flange 40 of the ring 29 is ring 30, such rings being interconnected by fasteners 42 extending through holes in L he ring 30 provided with the recessed counterbores 43 accomodating the heads in the recessed fashion illustrated while still providing a large bearing area for the fastener head.
  • the ring 30 extends axially substantially beyond the flange 40 and is provided on its outer surface with a series of axially extending flats seen more clearly at 46, 47 and 48 in Figures 6 and 7. Such flats extend between axially extending ribs seen at 50 and 51.
  • Each rib is provided with a circular projection as seen at 52 and 53, the centers of which are aligned with the respective ribs.
  • Such projections extend slightly beyond ._ the ribs and are offset toward what may be termed the front or projecting edge 54 of the ring 30. In such offset position, the projections 52 are also forward of the front edge 55 of the flange 40 of the ring 29, leaving a slight gap as seen at 56.
  • the array of spring fingers 27 includes individual fingers such as seen at 60, 61 and 62, each of which includes lateral circular edge notches which are transversely aligned as seen at 64 and 65. Such notches are designed to mate with the sides of the projections 52, 53, etc. In their attached position, the proximal end 67 of each finger extends beneath the flange 40.
  • the fingers In the assembled position of the fingers between the. nested rings, the fingers will be firmly held against axial displacement because of the interfitting projections and notches. Such fingers will also be held because of the snug fit between the flange 40 and the opposed flat on the exterior of the ring 30.
  • the ring may be made of a locally deformable material such as a polyurethane elastomer having a durometer hardness of from about 85 to about 95.
  • the projections and ribs on the exterior of the ring 30 lock the fingers in place and maintain their proper spacing and alignment when assembled.
  • a spring finger ply down assembly is provided which may be assembled in the manner indicated by first assembling the rings 29 and 30, or in which the individual fingers may be removed and replaced without affecting adjoining fingers. Such assembly considerably reduces both assembly time and machine down time for maintenance or repair.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)
EP81305664A 1980-12-08 1981-12-01 Umschlagvorrichtung für Reifenaufbaumaschinen Withdrawn EP0053906A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US214123 1980-12-08
US06/214,123 US4353771A (en) 1980-12-08 1980-12-08 Ply down assembly for tire building machine

Publications (2)

Publication Number Publication Date
EP0053906A2 true EP0053906A2 (de) 1982-06-16
EP0053906A3 EP0053906A3 (de) 1984-08-01

Family

ID=22797867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81305664A Withdrawn EP0053906A3 (de) 1980-12-08 1981-12-01 Umschlagvorrichtung für Reifenaufbaumaschinen

Country Status (7)

Country Link
US (1) US4353771A (de)
EP (1) EP0053906A3 (de)
JP (1) JPS5841190B2 (de)
KR (1) KR850001397B1 (de)
AU (1) AU7760581A (de)
BR (1) BR8107929A (de)
CA (1) CA1164778A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199488A3 (de) * 1985-04-18 1988-11-02 Nrm Corporation Umfaltfinger für Reifenaufbaumaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705589A (en) * 1984-01-13 1987-11-10 Nrm Corporation Tire building machine
US4584038A (en) * 1984-01-13 1986-04-22 Nrm Corporation Tire building method
JP2001260247A (ja) * 2000-03-17 2001-09-25 Sumitomo Rubber Ind Ltd 空気入りタイヤの製造方法
CN102159386B (zh) 2008-07-23 2014-10-22 倍耐力轮胎股份公司 制造用于车辆车轮的轮胎的设备和方法
EP2313258B1 (de) * 2008-07-23 2012-02-08 PIRELLI TYRE S.p.A. Verfahren und Vorrichtung zur Herstellung von Reifen für Fahrzeugräder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998049A (en) * 1958-01-28 1961-08-29 Goodyear Tire & Rubber Apparatus for building air spring
US3438832A (en) * 1964-08-17 1969-04-15 Nrm Corp Tire building machine
US3676261A (en) * 1970-07-06 1972-07-11 Goodyear Tire & Rubber Bead setting and ply turnup apparatus
JPS5221086A (en) * 1975-08-11 1977-02-17 Mitsubishi Heavy Ind Ltd Finger ply downing device in tire molder
US4238268A (en) * 1979-02-07 1980-12-09 Mccreary Tire And Rubber Company Tire building machine ply turn-down finger assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199488A3 (de) * 1985-04-18 1988-11-02 Nrm Corporation Umfaltfinger für Reifenaufbaumaschine

Also Published As

Publication number Publication date
EP0053906A3 (de) 1984-08-01
BR8107929A (pt) 1982-09-14
AU7760581A (en) 1982-06-17
CA1164778A (en) 1984-04-03
US4353771A (en) 1982-10-12
JPS5841190B2 (ja) 1983-09-10
KR850001397B1 (ko) 1985-09-30
KR830007280A (ko) 1983-10-19
JPS5796842A (en) 1982-06-16

Similar Documents

Publication Publication Date Title
US2145806A (en) Tire building drum
EP0431854B1 (de) Trommel zum Aufbauen von Reifenbestandteilen
EP0004715A1 (de) Reifenaufbaumaschine
CA2058397A1 (en) Method of forming ply member
EP2698244B1 (de) Manschettenlose Reifenbautrommel mit auswechselbaren Breitenelementen
US4353771A (en) Ply down assembly for tire building machine
CA2006988C (en) Expandable tire building drum
US4427473A (en) Belt folding machine and method
US4582557A (en) Tire building machine and method
US2353767A (en) Tire building drum
US4402783A (en) Axially collapsible and expandable tire building drum
JP6976430B2 (ja) タイヤ組み立てドラム及びタイヤ組み立て方法
US3476633A (en) Tire building drum
JP2006168367A (ja) タイヤ製造ドラム用の交錯させられたビード固定セグメント
EP0015113A1 (de) Reifen Aufbaumaschine und Verfahren
US4718968A (en) Finger ply down for tire building machine
US2882139A (en) Process of manufacture of buffing elements
CA1074540A (en) Method for mounting a tire bladder
US2073729A (en) Collapsible form
US2214825A (en) Tire building drum
US4238268A (en) Tire building machine ply turn-down finger assembly
EP0951986A1 (de) Einstufige maschine zum formen von radialreifen
US12083761B2 (en) Shoulder assembly for tire building machine
KR200177796Y1 (ko) 타이어 성형기용 비드록킹 세그먼트
EP3838574B1 (de) Reifenaufbautrommel und verfahren zum aufbauen eines reifens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19820915

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850202

RIN1 Information on inventor provided before grant (corrected)

Inventor name: YUHAS, GERALD J.